feat(mysql): Increased compatibility for MySQL

[zzzdong]

1. Add support LOCK/UNLOCK TABLES for MySQL.
2. Fix parse CREATE TABLE sql from SHOW CREATE TABLE.

May fix parts of #302 .

[alamb]

Looks great -- thank you @zzzdong

I took the liberty of merging up from main to resolve a conflict on this branch

[coveralls]

Pull Request Test Coverage Report for Build 7267163251

• 80 of 85 (94.12%) changed or added relevant lines in 4 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.03%) to 87.733%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/dialect/mysql.rs	27	28	96.43%
src/parser/mod.rs	10	11	90.91%
src/ast/mod.rs	23	26	88.46%

Totals
Change from base Build 7267000812:	0.03%
Covered Lines:	18187
Relevant Lines:	20730

---

💛 - Coveralls